Molar mass K₂SO₄ = 174.259 g/mol
1 mole K₂SO₄ ------------> 174.259 g
? mole K₂SO₄ ------------> 89.2 g
number of mole:
n = m / molar mass
n = 89.2 / 174.259
n = 0.51188 moles of K₂SO₄
Molarity ( M ) = moles solute / liters solution
3.52 = 0,51188 / V
V = 0.51188 / 3.52
V = 0.1454 L
hope this helps!
